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Leaving a tip a restaurant or taxi is a part life in many countries. Usually, we give a tip to a waiter or to a member of staff a hotel. At other times, we put the tip a jar next to the cash register. With modern technology, there is a new way to tip - self checkout machines. People are not so happy them. The machines are asking tips. They are in airports, stadiums, cookie shops, and cafes the USA. Self-checkout machines mean there is no face-to-face contact between people. However, many these machines are asking customers to leave a 20 per cent tip. Customers say they are not so happy leaving a tip and giving extra money a machine.

The Wall Street Journal reported that many people the USA are becoming tired tipping because of the self-checkout machines. Reporters wrote that many people are experiencing "tipping fatigue". Nearly 20 per cent Americans are now leaving tips things they never used to leave tips . They are even tipping when buying a bottle water. This was because there are more digital payment machines. A customer an airport store said a prompt a self-checkout machine was "emotional blackmail". The payments company Square reported that the machines are increasing the number tips. It said Americans are leaving 15 per cent more tips than before.

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